Albeet j



\ UNITED STATES PATENT OFFICE.

ALBERT J. KLETZKER, OF ST. LOUIS, MISSOURI.

- BOOK-COVER.

SPECIFICATION forming part of Letters Patent No. 361,950, dated April26, 1887. Application filed February 23, 1886. Serial No. 192,875. (Nomodel.)

, an inside part, with space between them to 1c Figurel is a perspectiveView of an inside book withthe removable cover thereon. Fig. 2 is aperspective View of the same with one leaf of the cover open. Fig. 3 isan inside perspective view of the cover. Fig. at is a per- 5 spectiveview of the inside book.

It is not a new thing to bind account-books with light covers and toinclose them in a removable cover when in use, the latter being removedwhen the acconntbook is full, or for other reason thrown out of constantuse.

My improvement consists in the described construction of thecover andmanner of bold ing it in place upon the inside book.

A is the inside book, the leaves B of whose 5 cover may be made lightand without any ornamentation, as they will not be subjected to wear norbein sightwheniu use. Theseleaves B have slots b for the passage ofbuttons 0 0 upon the cover 0 G. The buttons 0 each has 0 a singletongue, while button 0 is doubletongued.

In order that removable covers of the class to which my inventionbelongs may operate properly, it is necessary that they should be 5permitted to slide to a limited extent upon the cover-leaves of theinside book in opening and closing the book. To this end the slots 1)are formed with their greater length in a direction transverse to theback of the book or parallel 40 with the plane in which the covers movein The leaves of the cover are made double,

each leaf consisting of an outside part, 0, and

receive the leaf B of the inside book. The inside part, 0, is showndivided into three strips, 0', c", and 0, extending lengthwise of theleaf. The strip 0 is open at both its long edges, but united with theoutside 0 at bot-h ends. The strip 0 is united with the outside part, 0,at the outer edge and at both ends, and the strip 0 forms a flap hingedat one long edge to the inner edge of the strip 0 and not directlyconnected to the outside part, 0. When the strip 0 is folded down, asseen in Fig. 2, it fills the whole space between the strips c*and 0 Thespring-buttons are attached to the part 0 by rivets D, upon which theyturn as pivots. The heads (2 of the rivets may be made in form ofbosses, upon which the book may rest, thus preserving the face of theoutside part, 0, of the cover from wear.

In putting the cover upon the book A, the

leaves B are inserted between the parts 0 and G, and then the buttons 0c are drawn through the slots 2) and turned across the slots, as seen inFig. 2. Then the strips or flaps c are closed down. as shown in Fig. 2.Itwill now be seen that the face of the part G will be fiat, except forthepart of the strip cut out to have access to the button 0, and thus asmooth hearingwill be given to the leaves of the book which are next tothe part 0.

I have described the inner part, 0, of the leaves of the supplementaryor removable cover as consisting of three strips;-but this is notessential, for it may consist of one or more, the essential featurebeing the locking device, while the other novelties of the inventionhave value in their combination with this.

It has been stated that for the purpose of holding the two covers snuglytogether the buttons are formed of spring-steel plates; but it isobvious that so far as other features of the invention are concernedthisis not essential. For example, the slots arranged as described do notdepend upon any peculiarity in the construction of the heads of thebuttons in order to permit the two covers to slide upon each other.

I claim as my invention- 1. The combination, with the book havingcover-leaves provided with slots elongated in a direction transverse tothe back of the book, of the outside cover having buttons adapted topass through said slots and engage the coverleaves of the book,substantially as and for the purpose set forth.

2. A removable cover having spring-buttons to hold cover of an insidebook.

3. The combination, with an inner book having cover-1eaves, of anoutside removable cover having the strips 0 and c placed on the insideof the cover-leaves, as described, and having their ends secured to theends of said coverleaves, the intermediate strip, a, hinged to the edgeof one of the aforesaid strips, and buttons for securing thecover-leaves of the inner book and removable cover together,substantially as set forth.

4. The outside or supplemental cover having pockets to receive thecover-leaves of an ALBERT J. KLETZKER.

Vitnesses:

SAML. KNIGHT, BENJN. A. KNIGHT.

